16720512705

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{811}}^1\times {\mathrm{2711}}^1$

素因数の和:3559

約数の個数: 72

約数和(自身を含む): 31433403456

約数和(自身を除く): 14712890751

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 169, 195, 507, 585, 811, 845, 1521, 2433, 2535, 2711, 4055, 7299, 7605, 8133, 10543, 12165, 13555, 24399, 31629, 35243, 36495, 40665, 52715, 94887, 105729, 121995, 137059, 158145, 176215, 317187, 411177, 458159, 474435, 528645, 685295, 1233531, 1374477, 1585935, 2055885, 2198621, 2290795, 4123431, 6167655, 6595863, 6872385, 10993105, 19787589, 20617155, 28582073, 32979315, 85746219, 98937945, 142910365, 257238657, 371566949, 428731095, 1114700847, 1286193285, 1857834745, 3344102541, 5573504235, 16720512705]

約数ペア:

[(1, 16720512705), (3, 5573504235), (5, 3344102541), (9, 1857834745), (13, 1286193285), (15, 1114700847), (39, 428731095), (45, 371566949), (65, 257238657), (117, 142910365), (169, 98937945), (195, 85746219), (507, 32979315), (585, 28582073), (811, 20617155), (845, 19787589), (1521, 10993105), (2433, 6872385), (2535, 6595863), (2711, 6167655), (4055, 4123431), (7299, 2290795), (7605, 2198621), (8133, 2055885), (10543, 1585935), (12165, 1374477), (13555, 1233531), (24399, 685295), (31629, 528645), (35243, 474435), (36495, 458159), (40665, 411177), (52715, 317187), (94887, 176215), (105729, 158145), (121995, 137059)]